40242064 has 20 divisors (see below), whose sum is σ = 78410160. Its totient is φ = 20007200.

The previous prime is 40241989. The next prime is 40242079. The reversal of 40242064 is 46024204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4162 + ... + 9889.

It is an arithmetic number, because the mean of its divisors is an integer number (3920508).

Almost surely, 2^40242064 is an apocalyptic number.

It is an amenable number.

40242064 is a deficient number, since it is larger than the sum of its proper divisors (38168096).

40242064 is a wasteful number, since it uses less digits than its factorization.

40242064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14238 (or 14232 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 40242064 is about 6343.6632949740. The cubic root of 40242064 is about 342.6836750799.

Adding to 40242064 its reverse (46024204), we get a palindrome (86266268).

The spelling of 40242064 in words is "forty million, two hundred forty-two thousand, sixty-four".